Dogs have been our loyal companions for centuries, but their role extends far beyond friendship—they are natural protectors.

Some dogs don't react much to the loud noises outside and are able to remain chill, like Smith's other dog, an 8-year-old ...

These attributes can make these dogs dangerous in the wrong circumstances ... more brain space than humans have committed to this sense.

A ski patroller shared a typical day in the life of her dog, Millie, who is training to become an avalanche search and rescue dog, and the heartwarming video has delighted viewers on social media.